| Alessandria to Opwijk | 465.45 mi (749.08 km) |
| Alessandria to Ostend | 508.77 mi (818.79 km) |
| Alessandria to Oud-Heverlee | 447.75 mi (720.58 km) |
| Alessandria to Oud-Turnhout | 472.74 mi (760.80 km) |
| Alessandria to Oudenaarde | 471.01 mi (758.02 km) |
| Alessandria to Oudenburg | 504.41 mi (811.76 km) |
| Alessandria to Oupeye | 423.19 mi (681.06 km) |
| Alessandria to Overijse | 447.21 mi (719.71 km) |
| Alessandria to Overpelt | 459.56 mi (739.60 km) |
| Alessandria to Paal | 451.89 mi (727.25 km) |
| Alessandria to Peer | 453.57 mi (729.95 km) |
| Alessandria to Pepinster | 411.41 mi (662.09 km) |
| Alessandria to Peruwelz | 451.92 mi (727.30 km) |
| Alessandria to Perwez | 431.91 mi (695.09 km) |
| Alessandria to Philippeville | 411.20 mi (661.76 km) |
